On the Air: February 7, 2016
Coastline at Mustang Island State Park. Credit: Texas Parks and Wildlife

If you ever decide to walk America’s coastline, you better make sure someone’s taking care of your dog — it’s going to take a while. According to NOAA — the National Oceanic and Atmospheric Administration — the ocean coastline stretches for 88,633 miles.

Actually, NOAA has two measurements for the coastline. The other yields a length of just 12,383 miles. And both measurements are a bit arbitrary. That’s because there’s no internationally recognized definition of what a coastline really is.

In Print: February 1, 2016
Rabbitfishes have been observed watching out for one another while searching for food. Credit: BS Thurner Hof, 2005, GNU Free Documentation License

Fish often stick together for protection from predators. Staying within a school of fish is usually safer than swimming alone. But it turns out that some fish lend a helping fin when it comes to feeding as well.